the dvd shows testimony by a man kicked by an lapd officer. according to dorner it confirms the story dorner told the lapd the story he says got him kicked off the force. today is the eighth anniversary of his hiring. >> cnn's casey wian is outside a police station in hollywood, california, good morning. >> reporter: good morning, carol. police throughout southern california remain on high alert. you know, they are trying to both protect themselves as potential targets of christopher dorner, and also trying to find him. a possible break in the hunt for christopher dorner as authorities find his truck burning on a remote road in big bear lake, california. police fanned out, rifles drawn, as they searched nearby woods and go door to door. >> we'll keep working on it until we're able to locate the suspect or determine he's no longer in the big bear valley. >> reporter: dorner a former los angeles cop threatened to hurt l.a. police officers and their families, police say in retribution for being fired in 2008. he allegedly laid out his plan in an